This will launch tomorrow April 3, at 2:30 am PDT for worldwide users except for Japan, Belgium, France, and Switzerland.

Here's a little breakdown of what you can expect:
“Watch out! This is a new addition to the iconic NARUTO franchise which represents Japanese animation. Ideal for those who are looking to stay a moment away from the breathtaking battle scenes and the serious ninja rivalry, the spin-off series offers an alternative Naruto world with all characters super-deformed and comically retouched.

This light-hearted comedic short will be avail to worldwide audiences except for Japan and will kick off on April 6 at 10:30 am PDT.

Yurumate3Dei follows Yurume, an 18-year-old high school graduate who has yet to be accepted into college. In an effort to study for exams, she moves to Maison du Wish, an apartment complex on the outskirts of Tokyo which is full of other out-of-school "rōnin." Maybe that has something to do with the rumor about Maison du Wish: no one who lives there passes the entrance exam.

Unlikely. Lupin doesn't air until Wednesday U.S. time, so there is little reason for CR to announce it today, especially when 9 other shows premiere ahead of it (meaning even if CR only had 1/3 of those, it would be more than enough to fill today's slate).

And I have 6 series on my watchlist for this season(3 are continuations: Area no Kishi, Bodacious Space Pirates and Fate/Zero) which include Nyarko-san, Ozma and Space Brothers. I don't consider it a bad season at all for Crunchyroll and they may not even be half done with the annoucements.

And for the new stuff(and Fate/Zero), they have a nice variety so far:

And I think you are probably right about the Rock Lee anime being the next annoucement(although if there are 3 annoucments today, I think Lupin III will be the third one, although Medaka Box, Natsuiro Kiseki or even Kore wa Zombie Desu ka? of the Dead, which is a longshot, are possible)